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bhi ParaPro EQ20-DSP Sound file

The following audio files have been provided to support my reviews of the bhi ParaPro EQ200-DSP power amplifier with noise reduction and parametric filtering. The first recording shows an aeronautical VOLMET signal as folows: 0-20 seconds – Origian signal 20-40 seconds –  DSP Noise filter set to the mid position 40-60 seconds – DSP Noise filter […]

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137MHz Polar Orbiting Weather Satellites

In my Radio User Decode column I’ve been describing a receiving station for the NOAA polar orbiting weather satellites and in this post I’m including a few examples so you can see the station’s capabilities. All the images are taken directly from WXtoImg with no other enhancements. The station here comprises the following: QFH Antenna as […]

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QFH Antenna Mast Drilling Template

Bill Sykes and Bob Cobey have produced of the best home-build designs for a weather satellite antenna on their web site at: QFH Antenna. Their instructions are easy to follow and the result is a robust QFH antenna that is tuned for the centre of the 137MHz weather satellite band. The only problem I encountered was […]

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Using a ThermApp Camera with a Raspberry Pi-3

In this tutorial, I’ll show you how to install the software required to use the ThermApp thermal camera with the Pi. Once installed, you will be able to display thermal images using a standard video player such as VLC, mplayer, etc. Start with a fresh download of the latest Raspbian operating system. These instructions are based […]

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MotionPie Links

It seems the shortened MotionPie links I provided in my RadCom article are not working. I don’t know the cause of the problem yet but I’ve posted the full links below: MotionPie Download SDcard Formatter Win32DiskImager Sorry  for any inconvenience. Mike

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motionPie Server Available

I’ve just completed a brand new SD card image that contains the motionPie software, operating system and comes with 5-pages of printed instructions. motionPie can handle the Pi camera, USB or network webcams and is a great way to set up a home security surveillance system or maybe keep an eye on outbuildings. As the name suggests […]

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Radio User bhi Noise Elimination Review Sound Files

Here you will find a selection of sound files illustrating the noise elimination potential of the new bhi Dual In-Line and Compact In-Line units. For more information or to order, please visit the bhi web site. The sound samples were made by using a FUNcube Dongle Pro+ to capture an 180kHz wide IQ recording of the spectrum around 4.5MHz. […]

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bhi Dual In Line Noise Elimination – Sample Files

Having recently reviewed the new bhi Dual In Line Noise Elimination module for RadCom I have posted audio recordings of the DIL’s noise reduction performance below. The recordings were made by replaying an IQ recording of part of the 14MHz band using SDR Sharp. The demodulated audio was passed to the bhi DIL for processing […]

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